メタデータ名 maritalStatus-3
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.0625000 32.9333333, 131.0687500 32.9333333, 131.0687500 32.9375000, 131.0625000 32.9375000, 131.0625000 32.9333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral